Creative long exposure photography
From silky waterfalls to star trails, long exposure photography captures the world in a way we don’t normally see. These long exposure photography are popular and capture the viewer’s imagination, so it is worth studying long exposure photography to add some unique perspectives to your portfolio.
When is long?
It sounds like a nonsense question, but when is an exposure defined as “long” or “short”? 1/1000th sec seems very fast, but if you are photographing the wings of a bee, 1/1000th sec would be a long exposure. 1/10,000th sec would be a suitable exposure. Milky way exposures are around 20 seconds, but I would consider this to be a short exposure. My argument is that the photographer has kept the exposure as short as possible to avoid star trails. I think it makes things much simpler if we define a long exposure on the final result or the intended communication. If we compare a milky way photograph with a star-trail photo, the photographer is communicating scale and distance in the Milky way scene and the sense of the rotation of the Earth in the star trail photo.
Flowing water looks great with a long exposure. They don’t need a very long exposure to look great. It is thought that the human eye sees things at around 15th sec. If you set your shutter speed to 1/15 you will capture very close to how the human eye sees the waterfall. I recommend shutter speeds from 1/15 – 1/2 sec to photograph most waterfalls. These exposure speeds need a tripod, but sometimes a mono-pod could work. Some people dislike the silky water effect, but the best way to make a nice waterfall look ugly is to capture it with a fast shutter.
Long exposures can work very well on a beach. Receding waves paint white lines. Half to two second exposures are recommended for beach work. If your shutter speed is too long, the sea looks like a sea of milk and there are no definitive lines. Sometimes, you can get the white lines without a long exposure. Beach exposures can vary depending on the texture and slope of the beach.
The picture above was taken with a long exposure on the ice beach. The Magic Cloth covered the lens when the waves came in so only receding waves (wet sand) were exposed over a very long exposure (168 sec).